/Engine/Plugins/Media/MediaIOFramework/Source/MediaIOCore/Public/MediaCapture.h
Update the current capture with every frame for a TextureRenderTarget2D. The TextureRenderTarget2D needs to be of the same size and have the same pixel format as requested by the media output.
Return true if the capture was successfully updated. If false is returned, the capture was stopped.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Media|Output") bool UpdateTextureRenderTarget2D ( [UTextureRenderTarget2D](API\Runtime\Engine\Engine\UTextureRenderTarget2D) * RenderTarget )